body {
    overflow: hidden;
}

.video-player {
    background-color: transparent;
    display: block;
    position: absolute;
    z-index: 1;
    top: 0;
}

.video_mask {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 90;
}

.login, .register {
    height: 100px;
    width: 360px;
    padding: 20px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    position: absolute;
    left: 50%;
    top: 50%;
    margin: -150px 0 0 -150px;
    z-index: 99;
}

.login h1, .register h1 {
    text-align: center;
    color: #fff;
    font-size: 24px;
    margin-bottom: 20px;
}

.form_code {
    position: relative;
}

.form_code .code {
    position: absolute;
    right: 0;
    top: 1px;
    cursor: pointer;
}

.login_btn {
    width: 100%;
}

.login input {
    width: 250px;
}

.chat_login_btn {
    position: absolute;
    top: 73px;
    right: 20px;
    /*width:20%;*/
    background-color: #1E9FFF;
}

.back-ground {
    background-color: transparent;
    display: block;
    position: absolute;
    z-index: 1;
    top: 0;
}

